Editor's introduction: By July this year, websites that are not encrypted with web addresses that begin with HTTPS will get a "not secure" label in their address bar by the most popular web browser, Google Chrome. Using HTTPS means that your users' web activity is only visible by the people operating your website. Even if someone intercepts your web traffic, it would be scrambled. To encrypt your website, you need to install an SSL certificate, or even better, a TLS certificate on it. Find out more on how your library can upgrade to TLS. Here is a great article on the state of libraries and HTTPS by T.J. Lamanna. This piece was originally published on Medium and is reprinted here by permission of the author.